Analysis
- max time kernel
53s - max time network
129s - platform
windows10-2004_x64 - resource
win10v2004-20230220-en - resource tags
arch:x64arch:x86image:win10v2004-20230220-enlocale:en-usos:windows10-2004-x64system - submitted
17/04/2023, 07:58
Static task
static1
Behavioral task
behavioral1
Sample
f2d9283406e628606230f215a7e9b833.exe
Resource
win7-20230220-en
11 signatures
150 seconds
General
- Target f2d9283406e628606230f215a7e9b833.exe
- Size 212KB
- Sample230417-jttygafa9z
- SHA256 201510c2fb7bd86e61d220e72625750024c6c528df09774bb4a011193cdb5342
- MD5 f2d9283406e628606230f215a7e9b833
- SHA1 40b752d15b9533bde9fbed35e8ff78407295de34
- SHA512 54bf2c661c0e4869f428e65b979ec4ac3dce365f351486efb58b371d7484f7d935128d405651b135a1edeadbd9740810a92fa7782b548f743d3c89978e8c4e02
- SSDEEP 3072:SsiBKtdBXv5p2WUgNEmn6q0Wn2UI7efdssA289A5X9I7iMOsEV:XEG5pvEm6qHn2UI7mdssA2VO7iMbEV
- MD5 SHA1 SHA512 SSDEEP
Malware Config
Signatures
- Downloads MZ/PE file
- Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
description ioc Process Key value queried \REGISTRY\USER\S-1-5-21-144354903-2550862337-1367551827-1000\Control Panel\International\Geo\Nation f2d9283406e628606230f215a7e9b833.exe - Loads dropped DLL 2 IoCs
pid Process 4616 f2d9283406e628606230f215a7e9b833.exe 4616 f2d9283406e628606230f215a7e9b833.exe - Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
- Accesses cryptocurrency files/wallets, possible credential harvesting 2 TTPs
- Checks installed software on the system 1 TTPs
Looks up Uninstall key entries in the registry to enumerate software on the system.
- Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
- Program crash 1 IoCs
pid pid_target Process procid_target 2076 4616 WerFault.exe 82 - Checks processor information in registry 2 TTPs 2 IoCs
Processor information is often read in order to detect sandboxing environments.
description ioc Process Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString f2d9283406e628606230f215a7e9b833.exe Key opened \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0 f2d9283406e628606230f215a7e9b833.exe - Delays execution with timeout.exe 1 IoCs
pid Process 4480 timeout.exe - Suspicious behavior: EnumeratesProcesses 2 IoCs
pid Process 4616 f2d9283406e628606230f215a7e9b833.exe 4616 f2d9283406e628606230f215a7e9b833.exe - Suspicious use of WriteProcessMemory 6 IoCs
description pid Process procid_target PID 4616 wrote to memory of 5012 4616 f2d9283406e628606230f215a7e9b833.exe 87 PID 4616 wrote to memory of 5012 4616 f2d9283406e628606230f215a7e9b833.exe 87 PID 4616 wrote to memory of 5012 4616 f2d9283406e628606230f215a7e9b833.exe 87 PID 5012 wrote to memory of 4480 5012 cmd.exe 91 PID 5012 wrote to memory of 4480 5012 cmd.exe 91 PID 5012 wrote to memory of 4480 5012 cmd.exe 91
Processes
-
C:\Users\Admin\AppData\Local\Temp\f2d9283406e628606230f215a7e9b833.exe"C:\Users\Admin\AppData\Local\Temp\f2d9283406e628606230f215a7e9b833.exe"1⤵
- Checks computer location settings
- Loads dropped DLL
- Checks processor information in registry
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:4616 -
C:\Windows\SysWOW64\cmd.exe"C:\Windows\system32\cmd.exe" /c timeout /t 5 & del /f /q "C:\Users\Admin\AppData\Local\Temp\f2d9283406e628606230f215a7e9b833.exe" & del "C:\ProgramData\*.dll"" & exit2⤵
- Suspicious use of WriteProcessMemory
PID:5012 -
C:\Windows\SysWOW64\timeout.exetimeout /t 53⤵
- Delays execution with timeout.exe
PID:4480
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-
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 4616 -s 24322⤵
- Program crash
PID:2076
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 452 -p 4616 -ip 46161⤵PID:3412
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
- Path C:\ProgramData\mozglue.dll
- Size 593KB
- SHA256 ba06a6ee0b15f5be5c4e67782eec8b521e36c107a329093ec400fe0404eb196a
- MD5 c8fd9be83bc728cc04beffafc2907fe9
- SHA1 95ab9f701e0024cedfbd312bcfe4e726744c4f2e
- SHA512 fbb446f4a27ef510e616caad52945d6c9cc1fd063812c41947e579ec2b54df57c6dc46237ded80fca5847f38cbe1747a6c66a13e2c8c19c664a72be35eb8b040
- SSDEEP 12288:BlSyAom/gcRKMdRm4wFkRHuyG4RRGJVDjMk/x21R8gY/r:BKgcRKMdRm4wFkVVDGJVv//x21R8br
- MD5 SHA1 SHA512 SSDEEP
- Path C:\ProgramData\mozglue.dll
- Size 593KB
- SHA256 ba06a6ee0b15f5be5c4e67782eec8b521e36c107a329093ec400fe0404eb196a
- MD5 c8fd9be83bc728cc04beffafc2907fe9
- SHA1 95ab9f701e0024cedfbd312bcfe4e726744c4f2e
- SHA512 fbb446f4a27ef510e616caad52945d6c9cc1fd063812c41947e579ec2b54df57c6dc46237ded80fca5847f38cbe1747a6c66a13e2c8c19c664a72be35eb8b040
- SSDEEP 12288:BlSyAom/gcRKMdRm4wFkRHuyG4RRGJVDjMk/x21R8gY/r:BKgcRKMdRm4wFkVVDGJVv//x21R8br
- MD5 SHA1 SHA512 SSDEEP
- Path C:\ProgramData\nss3.dll
- Size 2.0MB
- SHA256 ac5c92fe6c51cfa742e475215b83b3e11a4379820043263bf50d4068686c6fa5
- MD5 1cc453cdf74f31e4d913ff9c10acdde2
- SHA1 6e85eae544d6e965f15fa5c39700fa7202f3aafe
- SHA512 dd9ff4e06b00dc831439bab11c10e9b2ae864ea6e780d3835ea7468818f35439f352ef137da111efcdf2bb6465f6ca486719451bf6cf32c6a4420a56b1d64571
- SSDEEP 49152:fECf12gikHlnKGxJRIB+y5nvxnaOSJ3HFNWYrVvE4CQsgzMmQfTU1NrWmy4KoAzh:J7Tf8J1Q+SS5/nr
- MD5 SHA1 SHA512 SSDEEP
- Path C:\Users\Admin\AppData\Local\Temp\Are.docx
- Size 11KB
- SHA256 5abf8e3d1f78de7b09d7f6fb87f9e80e60caacf13ef3c1289665653dacd7c454
- MD5 a33e5b189842c5867f46566bdbf7a095
- SHA1 e1c06359f6a76da90d19e8fd95e79c832edb3196
- SHA512 f2ad3812ec9b915e9618539b0f103f2e9acaad25fbbacd84941c954ce070af231324e83a4621e951c1dbae8d40d50410954e40dd52bbd46e34c54b0d1957407b
- SSDEEP 192:CtNCEE33S7Ok0CMSYbcBVk6tqM16iPBkeawLWdxd7o3Lp:aNwC78uYbcBv6akwLWdxdE3Lp
- MD5 SHA1 SHA512 SSDEEP